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$30 USD / hour
Flag of GREECE
agia paraskevi, greece
$30 USD / hour
It's currently 12:32 PM here
Joined April 14, 2013
0 Recommendations

Ioannis Z.

@ioanniszervos

5.0 (2 reviews)
2.4
2.4
$30 USD / hour
Flag of GREECE
agia paraskevi, greece
$30 USD / hour
100%
Jobs Completed
100%
On Budget
100%
On Time
N/A
Repeat Hire Rate

Senior GIS & DeFi Developer

1. DeFi developer with hands-on skills in solidity, web3, react, truffle, ganache, infura, vyper, remix, golang, rust. I have rich experience in the smart contract and various tokens(ERC20, ERC721, BEP20, BEP721...) on BSC, Ethereum, and Solana networks. Also ICO, IEO, IDO, DEX and integration with pancakeswap, uniswap, sushiswap and etc. 2. GIS(Geographical Information System) /RS(Remote Sensing) Expert/Developer I have been working on GIS 8 years ago and have rich experience on the Desktop, Web, Mobile GIS application development. -Object(road, buildings, vegetation etc) Detect and Analysis using Image Processing and Deep Learning. -3D GIS application development based Cesium and Potree(Point Cloud), Lidar dataset -A variety application using any Map SDK such as Google Maps, Mapbox, ESRI, OSM -Build customized independent online/offline 2D/3D map service for Web, Mobile application based Geoserver, Mapnik, GeoNode etc. -Spatial DB organization based PostGIS/PostgreSQL, MySQL, MsSQL, Oracle, Sqlite/Spatialie -Front end development using OpenLayers, Leaflet -Geoprocessing and Geospatial analysis using GDAL and ArcPy. In addition, I have strong skills in C#, Java, Python, PHP, Node.js and a variety of frameworks such as django,flask, laravel,express, Reactjs,Vue.js. I can provide you accuracy and speed to clients and work full-time.
Freelancer PHP Developers Greece

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Portfolio Items

Chase the Raven!
Rules:
-To play, minimum entry of .01 BNB (Changed from .1 BNB as per request)

-Countdown Timer set for 5 hours. The max time allowed on the clock is 5 hours. Hard cap. 

-Every single BNB entry added to the pool adds 5 seconds to the timer, maximum time is set at 5 hours. 

-Each transaction is divided into 3 parts - 40% Prize pool, 40% Next Pool, 20% Marketing, at first. 

-the Next Pool has a hard cap of 5 BNB so when the Next Pool hard cap is hit, each transaction will now be split 70% into prize pool and 30% into marketing instead of 40/40/20. 

-the last 3 (or 4 or 5 or whatever) people to make a transaction get paid!  Each entry is weighted, say you donated .1 BNB, you wont get as much as someone who donated 1.5 BNB. 

-The Next Pool Fund becomes the prize pool(5 BNB) and a new game starts!
Lottery Game on Binance Smart Chain
Chase the Raven!
Rules:
-To play, minimum entry of .01 BNB (Changed from .1 BNB as per request)

-Countdown Timer set for 5 hours. The max time allowed on the clock is 5 hours. Hard cap. 

-Every single BNB entry added to the pool adds 5 seconds to the timer, maximum time is set at 5 hours. 

-Each transaction is divided into 3 parts - 40% Prize pool, 40% Next Pool, 20% Marketing, at first. 

-the Next Pool has a hard cap of 5 BNB so when the Next Pool hard cap is hit, each transaction will now be split 70% into prize pool and 30% into marketing instead of 40/40/20. 

-the last 3 (or 4 or 5 or whatever) people to make a transaction get paid!  Each entry is weighted, say you donated .1 BNB, you wont get as much as someone who donated 1.5 BNB. 

-The Next Pool Fund becomes the prize pool(5 BNB) and a new game starts!
Lottery Game on Binance Smart Chain
send and receive crypto tokens
loan DApp
staking and withdraw tokens
DeFi website
send and receive crypto tokens
loan DApp
staking and withdraw tokens
DeFi website
Develped a Cryptozombie Factory smart contract which produces zombies based on 16 digits DNA numbers.
Cryptozombie Game (NFT)
Laravel aimeos e-commerce package development
Laravel backend developing
Laravel e-commerce and backend
App development using Android Studio, Visual Studio C# Xamarin, Swift
Android/iOS development
Visual Studio MFC, Winform, WPF
Visual Studio mono
Qt
Desktop app development for multi-platfoms

Reviews

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5.0
$140.00 CAD
Very knowledgeable and helpful in the tasks requested. Will definitely work with him again!
C Programming Python Software Architecture Blockchain Trading
P
Flag of Prith G. @prithg1976
11 months ago
5.0
€45.00 EUR
He worked and delivered perfectly what I am looking to achieve. I really pleased with his work. I would highly recommend him. Thanks!
PHP Website Design MySQL HTML Laravel
User Avatar
Flag of Clement F. @ClementFes
2 years ago

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Top Skills

PHP 1 Python 1 Website Design 1 Blockchain 1 Android

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